1. Villatic Catodon lazybone serac Anomaliped quintillionth

2. Intersecting crevasses can create isolated peaks in the ice, called seracs.

3. Seracs, crevasses, and shifting blocks of ice make the icefall one of the most dangerous sections of the route.

4. Glaciers slowly deform and flow due to stresses induced by their weight, creating crevasses, seracs, and other distinguishing features.